Did You Know?
The NEC Requirements For Use Of Anti-Short Bushing
When installing ARMORED CABLE (Type AC), NEC article 320.40 mandates the use of a insulating bushing (commonly referred to as Anti-Short or Redhead) between the metal sheath and the conductors. Fittings with insulated throats are not a substitute for the anti-short bushing. Always use UL listed anti-short bushings, Bridgeport cat. nos. 1000 through 1008.
When installing METAL-CLAD CABLE (Type MC), the NEC does not require the use of a Anti-Short insulating bushing. MC cable conductors are usually wrapped with mylar tape for protection, use of anti-short bushing is optional unless specified otherwise by the cable manufacturer.
Note: Above comments are not an interpretation of the National Electrical Code (NEC) or local regulations. Always consult your local electrical inspector for requirements in your area.
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